Sunday, September 18, 2016

0x80190194 OAB Error when Migrating to Exchange 2016

When migrating from Exchange 2013 to Exchange 2016, I encountered an error 0x80190194 when downloading the Offline Address Book on workstations.

0x80190194 The Operation Failed

0x80190194 is a very common error when downloading the OAB and there are many server side problems which can generate this error.

Exchange 2013 by default had the servers responsible for the Offline Address Book hard coded as a Virtual Directory as shown below.

In Exchange 2016, by default we no longer want to hard code the Virtual Directories and instead enable GlobalWebDistribution which allows the Autodiscover service to automatically select the best Virtual Directory for the distribution request.

To set this up, we want to ensure the VirtualDirectories attribute for each Offline Address Book is set to $null. We also want to ensure GlobalWebDistribution is enabled so that Autodiscover can take care of it.

4 comments:

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